Improved mode of constructing sewing-machine cases



UNITED STATES PATENT OEEIoE JOHN JOHNSON, OF HARTFORD, CONNECTICUT.

IIVIPROVED MODE OF CONSTRUCTING SEWING-MACHiNE CASES.

Specification forming part of Letters Patent N0. 72,739, dated December31, 1867.

The object desired to be attained thereby is to facilitate and cheapenthe manufacture and produce a stronger and better article.

Each and all parts of this case are prepared in readiness for puttingtogether by mechanism specially adapted for that purpose.

The moldings upon the edge of the cap, the edge ofthe base, thepanel-groove, the tongue-and-groove bevel-joints, are all formed byrapidly-revolving cutters.

The caps, sides, and ends in all their details are first prepared to agage, and are secured together in formers specially made for thatpurpose. A

The body is glued together upon a former of one fixed compact size. Thisformer (in size) is ofthe length, breadth, and depth required for theinside capacity of the case.

machine cases, I am enabled to produce them with sunk panels, lighter,stronger, cheaper, and moredurable than can be done Where they .are madeof Whole plain boards.

I believe I have thus shown the nature, modns operandi, and advantage tobe derived from this process of construction of sewing-machine cases.

I claima As al1 article of manufacture, a sewing-ma chine case asdescribed-viz., with tongueand-groove lniter-joints,including panels,snb` stantially as described.

JOHN JOHNSON. W'itnesses:

N. C. WILDER, JEREMY W. BLIssfr

